Microwave firing-incubation of cage-like (Ba,Sr)_3MgSi_2O_8:0.06Eu^(2+),0.1Mn^(2+) sphere from sprayed template-free xerogel particles  

作　　者：王龄昌 陆启飞 李建 林承菓 曹利生 王达健 

机构地区：[1]Institute of Materials Physics,School of Materials Science and Engineering,Tianjin University of Technology

出　　处：《Journal of Rare Earths》2013年第6期541-545,共5页稀土学报（英文版）

基　　金：supported by National Natural Science Foundation of China(21076161,50802062,50872091);Key Discipline of Materials Physics and Chemistry(Tianjin,China)(2006ZD30)

摘　　要：Morphology control of cage-like （Ba,Sr）3MgSi2O8：Eu,Mn luminous sphere in micrometer size with a simultaneous 660 nm/430 nm-featured band emission was investigated via microwave （MW） firing procedure. A firing temperature range associated with distinct reaction of xerogel particles was determined by thermal analysis, at which the pure host phase of （Ba,Sr）3MgSi2O8 was formed and the release of decomposed gas from the precipitated nitrates played a key role in controlling the multi-scale structured morphology. As-prepared Ba1.14Sr1.7MgSi2O8：0.06Eu2＋,0.1Mn2＋ samples featured in a band emission simultaneously emitting at both 660 and 430 nm under 350 nm light excitation by MW procedure with an enhancement emission compared to the sample by solid state procedure. The results suggested that MW firing procedure affected assembling cage-like particle in meso-, nano- and submicro- meters to achieve photoluminescence （PL） enhancement of the simultaneous red/blue emission.Morphology control of cage-like （Ba,Sr）3MgSi2O8：Eu,Mn luminous sphere in micrometer size with a simultaneous 660 nm/430 nm-featured band emission was investigated via microwave （MW） firing procedure. A firing temperature range associated with distinct reaction of xerogel particles was determined by thermal analysis, at which the pure host phase of （Ba,Sr）3MgSi2O8 was formed and the release of decomposed gas from the precipitated nitrates played a key role in controlling the multi-scale structured morphology. As-prepared Ba1.14Sr1.7MgSi2O8：0.06Eu2＋,0.1Mn2＋ samples featured in a band emission simultaneously emitting at both 660 and 430 nm under 350 nm light excitation by MW procedure with an enhancement emission compared to the sample by solid state procedure. The results suggested that MW firing procedure affected assembling cage-like particle in meso-, nano- and submicro- meters to achieve photoluminescence （PL） enhancement of the simultaneous red/blue emission.

关 键 词：rare earth ions phosphor luminescence MICROWAVE 

分 类 号：TN104.3[电子电信—物理电子学] TB383.1[一般工业技术—材料科学与工程]